Marshmallow Rice Bubbles Halloween Brains

August 8, 2025

- by Jenna

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Looking for a spooky, fun, and delicious treat to impress your guests this Halloween? These Marshmallow Rice Bubbles Halloween Brains are the perfect creepy yet tasty snack! Made with simple ingredients like marshmallows, Rice Bubbles (or Rice Krispies), and a touch of red food coloring, these edible “brains” are easy to make and guaranteed to be a hit at any Halloween party. Whether you’re hosting a ghoulish gathering or just want a festive treat for the kids, this recipe is a must-try!

Why You’ll Love This Marshmallow Rice Bubbles Halloween Brains Recipe

Perfectly Spooky and Fun for Halloween:

These edible brains are the ultimate Halloween treat—creepy enough to fit the theme but delicious enough that everyone will want seconds. The red food coloring adds a gory touch, making them a standout at any party.

Quick and Easy to Make:

With just a few simple ingredients and minimal prep time, this recipe is foolproof. Even if you’re not a baking expert, you can whip up these Rice Bubbles brains in no time.

Great for Kids and Adults Alike:

Kids will love shaping the brains and adding the “veins,” while adults will appreciate the nostalgic taste of classic Rice Krispie treats with a Halloween twist.

Ingredients for Marshmallow Rice Bubbles Halloween Brains

Unsalted Butter:

Adds richness and helps bind the marshmallow mixture smoothly.

Regular Marshmallows:

The sticky base that holds the Rice Bubbles together and gives that classic chewy texture.

Rice Bubbles (Krispies):

Provides the light, crispy texture that makes these treats so addictive.

Salt:

Balances the sweetness of the marshmallows and enhances the overall flavor.

Red Food Coloring:

Gives the brains their eerie, bloody appearance—perfect for Halloween!

(Note: The full list of ingredients with quantities is provided in the recipe card just below.)

Variations

Gluten-Free Option:

Use certified gluten-free Rice Krispies to make this recipe safe for those with gluten sensitivities.

Vegan Version:

Swap the butter for coconut oil and use vegan marshmallows to keep this recipe plant-based.

Extra Spooky with Green Food Coloring:

For a Frankenstein-inspired twist, use green food coloring instead of red and shape the treats into monster heads.

How to Prepare Marshmallow Rice Bubbles Halloween Brains

Step 1:

Prepare a Bain-Marie by boiling ½ cup of water in a small pot. Place a large heatproof bowl over the pot to create a double boiler.

Step 2:

Add the butter and marshmallows to the bowl. Whisk continuously until the mixture melts into a smooth paste (about 2-4 minutes).

Step 3:

Carefully remove the bowl from heat using oven mitts. Stir in the salt and a few drops of red food coloring until fully combined.

Step 4:

Pour the marshmallow mixture over the Rice Bubbles in a large mixing bowl. Stir thoroughly to coat every piece.

Step 5:

Oil your hands and shape the mixture into oval “brains.” Use a butter knife to create a dent in the middle, then draw veins with a toothpick dipped in red food coloring.

I’ve picked out a few handy kitchen tools for you that I spotted on Amazon. They’re practical, well-rated, and loved by fellow cooking enthusiasts.
Take a look, compare, and see if one of them could make your time in the kitchen a little easier!

Stainless Steel Mixing Bowls Set

Essential for safely melting marshmallows over a Bain-Marie without cracking or warping.

Buy on Amazon

Silicone Spatula Set

Makes stirring the sticky marshmallow mixture easier and ensures no waste.

Buy on Amazon

3 PCS Wooden Halloween Charcuterie Board

Elevates your presentation with a spooky platter perfect for Halloween parties.

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Tips and Tricks

Work Quickly While Shaping:

The marshmallow mixture hardens as it cools, so shape the brains while it’s still warm and pliable.

Use Parchment Paper for Easy Cleanup:

Lay parchment paper on your work surface to prevent sticking and make cleanup a breeze.

Adjust the Food Coloring for Intensity:

Add more or less red food coloring depending on how “bloody” you want your brains to look.

How to Serve

On a Creepy Platter:

Arrange the brains on a dark-colored tray with plastic spiders or fake cobwebs for extra Halloween flair.

With a Side of “Blood” Dip:

Serve with strawberry syrup or raspberry jam for dipping—perfect for grossing out your guests!

As Part of a Halloween Dessert Table:

Pair these brains with other spooky treats like ghost-shaped cookies or witch finger pretzels.

Make-Ahead and Storage

Store in an Airtight Container:

Keep the brains fresh for up to a week by storing them in an airtight container at room temperature.

Freeze for Longer Storage:

If you need to make them ahead, freeze the shaped brains in a single layer, then transfer to a freezer bag for up to a month.

Refresh Before Serving:

If the brains lose their stickiness, microwave them for a few seconds to soften before serving.

FAQ

1. Can I use mini marshmallows instead of regular ones?

Yes! Mini marshmallows melt faster, so keep an eye on them to avoid overcooking.

2. How do I prevent the mixture from sticking to my hands?

Lightly oil your hands or wear food-safe gloves when shaping the brains.

3. Can I use other cereals instead of Rice Bubbles?

Absolutely! Try Corn Flakes or puffed rice for a different texture.

These Marshmallow Rice Bubbles Halloween Brains are sure to be the talk of your Halloween party—creepy, fun, and irresistibly tasty. Happy haunting (and snacking)!